Oven-plate.



F. V. KNAUSS.

OVEN PLATE.

APPLIOAIION FILED AUG. 2, 1909.

955,411. v Patented Apr. 19,1910.

WWW 4 Q I v j 5 ANDREW a GRANAM co. PNOTO-L JGRAPHERS. wasummo. lac

FRANK V. KNAUSS, OF PORTSMOUTH, OHIO.

OVEN-PLATE.

Specification of Letters Patent.

Patented Apr. 19, 1910.

Application filed August 2, 1909. Serial No. 510,877.

To all whom it may concern:

Be it known that I, FRANK V. KNAUss, a citizen of the United States, residing at Portsmouth, in the county of Scioto and State of Ohio, have invented certain new and useful Improvements in Oven-Plates, of which the following is a specification.

My invention relates to an improvement in oven base of gas stoves.

One of the objects of my invention is to provide an oven base with a series of passages formed upon one side thereof to convey gas to a point of ignition and from one burner to another.

Another object of my invention is to provide an oven base upon one side with a series of ribs between which the burners of the stove lie, said ribs forming passages leading to one or more terminals opening upon the opposite side of the base providing ignition points for the burners.

The features of my invention are more fully set forth in the description of the accompanying drawings, forming a part of this specification, in which Figure 1 is a bottom plan view of my oven base for gas stoves. Fig. 2 is a side elevation thereof, with a burner shown in position. Fig. 3 is a section on line w, m, Fig. 1. Fig. 4: is a detail horizontal section through a gas stove at the oven portion, illustrating my improved oven base. Fig. 5 is a detail view of burner. Fig. 6 is a detail elevation of the side of the stove, illustrating the outside ignition opening.

My invention accomplishes a two-fold purpose, that of forming a rigid oven base which is preferably made of cast-iron, whereby warping is prevented and the high heat directed against the base more uniformly distributed within the oven and not directly brought upon the inside surface of the oven base, avoiding the burning or scorching of the food products in their containers when directly placed upon the oven base. Further, obviating the use or employment of pilot lights commonly used in stoves of this class in which said pilot lights were controlled by a valve independent of the valve of the burners.

lVith my invention no extra valves or mechanism are employed for lighting the burners, it being merely required to turn on the of the respective oven burners, the vapor passing within the passages to a convenient point for lighting, which action will thereof to the point of ignition.

cause the flame to travel back to the burners. Further, several points of ignition may be provided, one wherein the oven burners can be lighted from the exterior of the stove, and a second requiring the oven door to be opened before lighting, the point of ignition in this instance being within the oven. The advantage of this latter feature is to permit escaped gases from the burners to be expelled from the oven prior to lighting, avoiding explosions sometimes caused by the accumulation of gases within the oven.

1 represents the oven of an ordinary gas stove or range formed in the usual manner of doublewall and intermediate passages forming fines leading to the top of the oven and to an off-take flue, not shown in the drawings, but common in every gas stove.

2 represents a sheet metal plate forming the inside lining of the oven base.

3 represents a cast-iron plate secured to plate 52, forming the outside surface of the oven base. This plate 3 is provided with a series of ribs 4, forming the passages 5, between them leading-to a common point of ignition 6.

7 represents a cross passage formed by the ribs 8, leading from one passage 5 to the other.

9 represents burners secured in any wellknown manner beneath the oven plate 3 and within the passages 5, the burners being connected to a supply pipe 9*, and intermediate mixers 10, in any well-known manner.

10 represents a series of orifices formed in the burners at an angle leading to the top of the burners, so as to convey the gases at this point within the channels or passages 5 and cause them to float along the surface While it is not absolutely essential that the burners be so formed, it serves to convey the gas to the ignition point and insures the same to be so conveyed.

In stoves of this class it is desirable by some that the oven door he opened before lighting the burner, and this is accomplished by providing a by-passage 11, leading from one of the passages 5, said by-passages leading upward through the oven plates 2, 3, to the forward portion of the oven and pref erably at one end; in this instance, the lighted products of combustion are conveyed from one burner to theother through the passage 7.

In forming the oven base of cast-iron, a more rigid structure against warping is provided with higher efliciency and durability than by the use of the Well-known method of double sheet-metal base with an intermediate packing and by obviating the use of a special pilot light or burner to light the oven burners, the danger of escaping products or gases is materially lessened owing to the decrease in the number of valves.

As illustrated in Fig. 4, the ignition point 6 is between the two walls of the oven, permitting the gases to escape upward to the off-take flue and access can be gained to this point by providing the outer wall with an opening 12, thereby preventing the escape of gases into the room when a stove is provided with the proper off-take flue.

Having described my invention, I claim 1. A gas stove oven base formed with a series of passages on one side thereof, converging to a common point for gas ignition, and gas burners within said passages.

2. A gas stove oven base formed with a series of ribs forming passages upon one side and extending the entire length thereof, said passages converging to a common point for gas ignition, a series of cross ribs forming a cross-passage intermediate said first-named passages, and gas burners lying in close proximity to said first-named passages.

f I J I f l J 1 I 1 3. In a gas stove, an oven base provided on one side thereof with the following organization of passages, a series of main passages, a cross passage connecting said main passages and an ignition passage independent of the cross passage in communication with one of said main passages, and gas burners within said series of main passages.

4. In a gas stove, an oven base formed with a series of ribs, gas burners lying between said ribs, said ribs converging to a point beyond the oven providing an ignition point for the burners.

5. In a gas stove, an oven base formed with a series of passages, gas burners lying in close proximity thereto, said passages leading to common points upon the opposite side of the base to provide ignition points for the burners.

6. In a gas stove, an oven base provided with passages which terminate in common points for gas ignition, one of said passage terminals extended outside of the oven, and a second inside the oven and gas burners within said passages.

In testimony whereof, I have hereunto set my hand.

FRANK V. KNAUSS. IVitnesses B. N. HOPKINS, HENRY Soorr, Jr. 

